作者: Fahimeh Farahnakian , Adnan Ashraf , Tapio Pahikkala , Pasi Liljeberg , Juha Plosila
关键词:
摘要: High energy consumption of cloud data centers is a matter great concern. Dynamic consolidation Virtual Machines (VMs) presents significant opportunity to save in centers. A VM approach uses live migration VMs so that some the under-loaded Physical (PMs) can be switched-off or put into low-power mode. On other hand, achieving desired level Quality Service (QoS) between providers and their users critical. Therefore, main challenge reduce while satisfying QoS requirements. In this paper, we present distributed system architecture perform dynamic maintaining QoS. Since problem strictly NP-hard, use an online optimization metaheuristic algorithm called Ant Colony System (ACS). The proposed ACS-based Consolidation (ACS-VMC) finds near-optimal solution based on specified objective function. Experimental results real workload traces show ACS-VMC reduces required performance levels center. It outperforms existing approaches terms consumption, number migrations, requirements concerning performance.